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JP4653762B2 |
A cylinder sleeve for an internal combustion engine is provided with a flat zone that extends along the entire axial length thereof. The cylinder sleeve is embodied as a rough cast sleeve whose outer surface comprises a rough zone that e...
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JP4650371B2 |
A cylinder block (1) has at least two cylinder banks (7,9) each having cylinder bores (3a,3b) arranged in at least two directions relative to an axis for a crankshaft. A rotator (17) on which the cylinder block (1) is securely disposed h...
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JP2011046432A |
To provide a filling system that performs subdividing operation of a prescribed amount immediately after starting thereof, when filling viscous substance.The filling system comprises: a cylinder block 21 that includes a first end connect...
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JP4645521B2 |
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JP2011032976A |
To reduce a friction loss between the opposed surfaces of the skirt of a piston and the liner of a cylinder.A tapered portion 2c is formed on the inner wall surface of the lower end of the liner 2a of the cylinder 2 in a diesel engine 1....
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JP2011017277A |
To provide a metallic material sliding surface structure in which a cured layer is formed on a surface of a metallic material without forming a sprayed coating, and lubricant is sufficiently maintained without requiring waste liquid trea...
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JP2011017441A |
To provide an inexpensive high-performance device utilizing a chamber and piston combined structure.The piston and chamber combined structure includes a chamber formed as an elongated chamber with a major axis, and having a first cross s...
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JP4613902B2 |
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JP2011007076A |
To provide a reciprocating engine for reducing a friction loss between a piston and a cylinder inner surface.In this reciprocating engine 1, a second piston ring 27 forming an annular gas chamber 31 is downward slantingly arranged toward...
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JP2010286014A |
To provide a hydraulic cylinder which enables the formation of cavitation near a lip tip end to be suppressed while protecting the lip tip end of a seal member.The hydraulic cylinder includes a portion structured with a minute clearance ...
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JP2010540863A |
A cylinder having a hollow cylindrical body with an axially moveable rod disposed therein that is moveable between a rest position and a stop position. The cylindrical body and rod are configured so as to create a main chamber located be...
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JP2010274386A |
To provide a sliding material of Si-particle-containing Al-Si alloy, preventing generation of scuffing (in particular, at low temperature) on a sliding surface.The sliding surface contains at least 17-35 mass% of Si, and includes groove ...
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JP4595836B2 |
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JP4584058B2 |
A cylinder block contains a cylinder liner having an outer circumferential surface on which a film is formed. The film functions to form gaps between the cylinder block and the cylinder liner. Alternatively, the film functions to reduce ...
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JP2010255821A |
To sufficiently smoothly operate mutual members, in a plunger used between relatively operating members.The plunger has a cylindrical body 10 for arranging a male screw 11 on an outer peripheral surface, a compression spring 20 stored in...
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JP4573872B2 |
A system for precisely centering a workpiece within a cylindrical bore such that the center of the workpiece is coaxial with the central axis of the bore. An arbor is used within the cylindrical bore to sense and calculate the location o...
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JP2010242765A |
To provide an internal combustion engine having a cylindrical external housing 12 having a cylindrical cylinder for forming an output cylinder arranged in an annular shape.A cylinder has opposed intake and exhaust pistons 38 and 40. The ...
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JP2010236649A |
To provide a piston ring suitably used in a combination with a cylinder or a cylinder liner having a sliding surface structure reducing reciprocating friction.The piston ring is formed in an outer peripheral sliding surface of the piston...
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JP4560482B2 |
A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston in said chamber to be sealingly movable relative to said chamber wall at least between a first longitudinal po...
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JP4563342B2 |
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JP4552953B2 |
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JP4548336B2 |
A reciprocating engine (1) comprises: a piston ring (5); a piston ring (7) which defines an annular gas chamber (6) in cooperation with the piston ring (5) and which is adjacent to the piston ring (5) such that a pressure-receiving area ...
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JP2010196518A |
To provide a simple secondary system cooling device that requires neither an on-off valve for controlling circulation of cooling water at cylinder block side nor a control mechanism.A water jacket 4 on the cylinder head side has a coolin...
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JP2010175043A |
To provide a manufacturing method for a cylinder device such as a hydraulic damper capable of eliminating the need for masking for a sliding part of a piston rod when coating is conducted.A cap member 7 is installed at the tip of the pis...
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JP2010163880A |
To provide an internal combustion engine capable of reducing piston hammering generated when the direction of thrust force applied to a piston is reversed. The internal combustion engine 10 includes: the piston 1 axially reciprocated alo...
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JP4512001B2 |
A cylinder liner for an engine cylinder block. A roughening process is performed only on an upper region of the outer surface of the cylinder liner. This increases adhesiveness with a sprayed layer at the upper region compared to a lower...
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JP2010156251A |
To provide a cylinder structure of internal combustion engine having reduced piston slap noise generated by the reversal of direction of applied thrust force. The cylinder structure includes a cylinder liner 1, and a piston 2 axially rec...
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JP2010156003A |
To provide a cast-iron member with a spray deposit film which is capable of consistently enhancing the adhesiveness to an aluminum alloy-made cylinder block on an interface with each other, and applicable to a cast-iron made cylinder lin...
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JP4495325B2 |
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JP4496844B2 |
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JP4497086B2 |
Embodiments of the invention use a gas flow to prevent adherence of a coating to portions of an engine block (1) adjacent to a cylinder bore (7a,7b,7c) being coated with the coating. Embodiments may be particularly useful for applying a ...
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JP2010144736A |
To provide a reciprocating engine preventing a piston ring from interfering with an oil ring and allowing a desired side pressure to occur for a remarkable reduction in sliding frictional resistance between the piston ring and a piston s...
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JP2010133424A |
To provide a method of manufacturing a cylinder liner for suppressing excessive lowering of the temperature of a cylinder liner. A coating film 5 is formed on an outer peripheral face through arc thermal spraying, and the diameter of a w...
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JP4483691B2 |
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JP4477746B2 |
An antipolishing ring arrangement, utilized in a cylinder (1) of a large combustion engine, which arrangement is supported on a cylinder sleeve (2). The antipolishing ring arrangement comprises at least two separate ring elements (4,5), ...
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JP4474338B2 |
A cylinder liner has an upper portion and a lower portion with respect to an axial direction of the cylinder liner. A high thermal conductive film is provided on an outer circumferential surface of the upper portion. A low thermal conduc...
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JP2010116974A |
To reduce the total length, and reduce the weight in an internal combustion engine equipped with a plurality of pistons for a balancer, which move opposedly to a piston for a combustion chamber.The internal combustion engine 10 includes ...
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JP4462077B2 |
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JP2010513776A |
An insert for a cylinder sleeve or a cylinder of an internal combustion engine is provided for narrowing the diameter of the cylinder sleeve or cylinder in the region of the upper dead center of a piston guided in the cylinder sleeve or ...
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JP4450908B2 |
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JP4446015B1 |
In a cylinder block manufacturing method, first and second dies (1 and 2) and a liner support (4) are provided to form a liner overcast configuration. The first and second dies (1 and 2) are positioned with respect to the liner support (...
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JP4434127B2 |
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JP4429025B2 |
A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block...
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JP2010046759A |
To provide a working method of a cylinder block which can apply such a deformation as to cancel the deformation of a bore generated during an operation of an engine to the cylinder bore by a finishing work of the cylinder bore irrespecti...
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JP2010042502A |
To provide a method of machining for forming a sliding surface on a cylinder wall of a cylinder liner of a piston type combustion engine, in particular low-speed large diesel engine of the two stroke type, where a piston is arranged in a...
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JP4419027B2 |
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JP4415238B2 |
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JP2010031840A |
To provide a cylinder block having excellent wear resistance and seizure resistance and restricted in friction loss, and to provide a manufacturing method thereof.This cylinder block includes a cylinder wall 103 having a slide surface 10...
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JP4409101B2 |
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JP4404058B2 |
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